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How does lucene index documents?

...robably the best more recent alternative is http://lucene.apache.org/core/3_6_2/fileformats.html There's an even more recent version at http://lucene.apache.org/core/4_10_2/core/org/apache/lucene/codecs/lucene410/package-summary.html#package_description, but it seems to have less information in it ...
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How do I remove  from the beginning of a file?

...be for PHP to actually interpret the BOM correctly, for that you can use mb_internal_encoding(), like this: <?php //Storing the previous encoding in case you have some other piece //of code sensitive to encoding and counting on the default value. $previous_encoding = mb_internal...
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Split array into chunks

... For one-liners (chain-lovers): const array_chunks = (array, chunk_size) => Array(Math.ceil(array.length / chunk_size)).fill().map((_, index) => index * chunk_size).map(begin => array.slice(begin, begin + chunk_size));. – Констан...
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Returning value that was passed into a method

...ful, if you have multiple parameters you can access any/all of them with: _mock.Setup(x => x.DoSomething(It.IsAny<string>(),It.IsAny<string>(),It.IsAny<string>()) .Returns((string a, string b, string c) => string.Concat(a,b,c)); You always need to reference all the ar...
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receiving error: 'Error: SSL Error: SELF_SIGNED_CERT_IN_CHAIN' while using npm

...gistrars npm config set ca "" Update: npm has posted More help with SELF_SIGNED_CERT_IN_CHAIN and npm with more solutions particular to different environments You may or may not need to prepend sudo to the recommendations. Other options It seems that people are having issues using npm's r...
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How do you use gcc to generate assembly code in Intel syntax?

.... See LLVM Bug 24232: [X86] Inline assembly operands don't work with .intel_syntax. Also, Clang ignores prefix/noprefix (not sure if it matters if Clang consumes the assembly). – jww Sep 26 '15 at 22:34 ...
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How to pass values between Fragments

...uper.onCreate(savedInstanceState); setContentView(R.layout.activity_main); if (findViewById(R.id.container) != null) { if (savedInstanceState != null) { return; } getFragmentManager().beginTransaction() ...
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How does C compute sin() and other math functions?

...r than the fsin assembly instruction. Source code: sysdeps/ieee754/dbl-64/s_sin.c, look for __sin (double x). This code is very complex. No one software algorithm is as fast as possible and also accurate over the whole range of x values, so the library implements several different algorithms, and i...
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How to know if an object has an attribute in Python

...Exists" The disadvantage here is that attribute errors in the properties __get__ code are also caught. Otherwise, do- if hasattr(someObject, 'someProp'): #Access someProp/ set someProp pass Docs:http://docs.python.org/library/functions.html Warning: The reason for my recommendation is ...
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Resolving javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path

...ertificate for App2 to the truststore file of the used JVM located at %JAVA_HOME%\lib\security\cacerts. First you can check if your certificate is already in the truststore by running the following command: keytool -list -keystore "%JAVA_HOME%/jre/lib/security/cacerts" (you don't need to provide a ...